What a tow should actually cost
Ask a club treasurer what a tow costs and you will usually get a number derived from fuel. Fuel is real, and it is rarely more than half of it. The rest is spread across an engine fund nobody has opened, an insurance renewal that arrives in February, and an aircraft quietly losing value in a hangar you are also paying for.
This is not an argument that your tow fee is too low. It might be exactly right. It is an argument that most clubs do not know which, because the tow fee they charge was set some years ago by someone who has since stepped down, and has been adjusted since by roughly the rate of inflation and the mood of the committee.
The four costs that go missing
Fuel is the one everybody counts, because you buy it visibly and often. The four that go missing all share a property: nobody hands you an invoice for them on the day you fly.
1. The engine reserve
A tug engine has a finite life and a known price to replace. Say an overhaul runs $38,000 against an 1,800-hour TBO. That is a genuine, unavoidable $21 per engine hour, accruing whether you set the money aside or not. On a nine-minute block that is about $3.17 a tow.
Three dollars sounds trivial. Over 1,200 launches a year it is $3,800 — and the club that has not been accruing it does not discover this gently. It discovers it when the engine reaches TBO and someone proposes a special levy at an AGM.
The same logic runs on the propeller, on any life-limited component, and on the airframe's own inspection cycle. None of them bill you monthly. All of them bill you eventually.
2. Capital
Your tug is worth less each year. That is a real cost of launching gliders even though no money leaves the account, and it is the one most likely to be met with "but we already own it."
You do — and in fifteen or twenty years you will need the next one. A tug worth $85,000 amortised over twenty years is $4,250 a year, or about $3.50 a launch at 1,200 launches. A club that never books this is not running cheaply; it is running on the capital its predecessors accumulated, and passing the replacement problem to whoever is on the committee when the airframe finally gives up.
3. The costs that do not care whether you fly
Insurance, hangarage, the annual, the 100-hour. These arrive whether the season was glorious or washed out. On plausible mid-size-club figures they run to something like $12,000 a year before the tug has turned a propeller.
4. Block time, which is longer than you think
This is the input clubs get wrong most often, and it is the one that matters most, because every variable cost scales off it.
The relevant number is not how long the climb takes. It is engine-running time: start, taxi out, wait, tow, descend, taxi back, shut down. A tow that "takes about six minutes" to 2,000 feet is commonly nine or ten minutes of Hobbs time once the taxiing and the waiting are included.
The difference between six and nine minutes is a 50% increase in fuel, engine reserve and propeller reserve simultaneously. If you take one number from this page to check against your own records, make it this one.
How to find your real block time
You almost certainly already have this, in the tug's Hobbs or tach readings. Take a whole flying day, not a good one and not a wet one:
- Hobbs reading at the end of the day, minus the reading at the start.
- Divide by the number of launches flown that day.
- Repeat for three or four days spread across the season and take the mean.
That number includes the ferry flights, the aborted launch, the twenty minutes the tug ran while the grid sorted itself out, and the reposition to the far end after the wind changed. All of that is real engine time and all of it is chargeable to launching gliders, because none of it would have happened otherwise.
Clubs that do this for the first time are usually somewhere between one and three minutes a launch above what they assumed. At 1,200 launches a year, two extra minutes is 40 engine hours — roughly $3,900 of fuel and engine reserve that was not in anyone's budget, on the figures used above.
Why launches per year matters more than fuel price
Here is the part that changes how the conversation goes at a committee meeting.
On plausible figures for a mid-size US club, roughly half the cost of a launch is fixed — insurance, hangarage, the annual, depreciation — and half is variable. Fixed costs divide by however many launches you actually fly. So:
| Launches per year | Cost per launch | Share that is fixed |
|---|---|---|
| 600 | $42.73 | 65% |
| 1,200 | $28.94 | 48% |
| 2,500 | $21.77 | 30% |
Same aircraft, same fuel price, same insurance. The club flying twice as much pays two-thirds as much per launch. Nothing you can negotiate on fuel comes close to that.
This also explains something that feels unfair and is simply arithmetic: a rained-off season does not reduce your costs. It concentrates them into fewer launches. A club that budgets on last year's launch count and then flies 30% less has not lost 30% of its tow income against 30% of its costs — it has lost 30% of its income against perhaps 15% of its costs.
The practical consequence: if you want a cheaper tow, the most effective lever available to most clubs is not a supplier. It is flying more launches with the tug you already own — more flying days, better launch-rate discipline on the days you have, fewer hours lost to a disorganised grid.
What clubs actually charge
We compiled the published rates of 34 US soaring clubs from their own websites. Of the 22 that publish a price for a 2,000-foot tow:
- The median is $40.
- The range runs from $34 to $63.50.
Set that against the table above and the uncomfortable arithmetic becomes visible. A club flying 600 launches a year and charging the median $40 is somewhere around break-even at best, and quite possibly under it. A club flying 1,200 launches at the same fee has real margin.
Two clubs charging the identical fee can be in completely different financial positions, and neither of them will find this out from their tow fee. They will find it out from their reserves, years later.
Is it actually wrong to lose money on tows?
No. And this is the part that most cost-recovery advice gets wrong.
Plenty of well-run clubs deliberately price tows below cost and recover the difference through membership dues. There are good reasons to. A cheap tow at the point of use encourages people to fly, and members who fly stay members. A high tow fee is a decision point every single time somebody looks at the sky on a marginal day, and enough of those decision points is how a member drifts away without ever resigning.
Charging below cost is a legitimate strategy. Charging below cost without knowing it is not a strategy — it is a surprise waiting for a committee that has not been warned.
The question worth putting to a committee is not "are we covering our costs?" It is:
We are subsidising each tow by roughly this much, from dues. Is that what we intend, and can we sustain it at the launch rate we are actually flying?
A club that can answer that is in control of its finances at whatever fee it charges. A club that cannot is hoping.
What to do with this
Four options, and they are not exclusive:
- Raise the fee. The obvious lever and the least popular. Worth knowing that at the median of $40 there is visible headroom in the market — clubs charge up to $63.50 and continue to have members.
- Subsidise on purpose. Decide the number, write it into the budget as a line item, and tell the membership what it is. A subsidy that everyone knows about is a benefit; one that only the treasurer knows about is a liability.
- Fly more launches. The strongest lever and the slowest. It is also the only one that makes the club better rather than merely more solvent.
- Change the launch method. A winch has a much lower running cost per launch and much higher fixed costs, so it rewards volume even harder than a tug does. Whether it pays back depends almost entirely on how many launches you would actually move onto it.
Run your own numbers
Every figure in this article is either from a club's own published rate sheet — the census — or a plausible estimate we have shown our working for. Neither is your club.
The launch cost calculator takes your figures and gives you the fully-loaded number, the break-even launch count for a winch, and a ranking of which input actually moves your cost. It is free, there is nothing to sign up for, and it prints to one page for a committee pack.
Before you can do any of this, you need to know your real launch count and your real block time. Most clubs have both — scattered across a paper log, a spreadsheet, and one person's memory. Getting them into one place that adds up is a prerequisite for every option above, and it is the thing GliderOps was originally built to do. But do the arithmetic first, with whatever records you have. The number matters more than the tooling.
The short version
- Fuel is under half the cost of a tow. Engine reserve, capital and fixed overheads are the rest.
- Block time is engine-running time, and it is usually longer than the climb suggests.
- About half your launch cost is fixed, so launches per year moves the number harder than any supplier will.
- The US median 2,000 ft tow is $40, and the range is $34 to $63.50.
- Charging below cost is a valid choice. Doing it unknowingly is not.